H02J13/00016

Monitoring of distributed power harvesting systems using DC power sources

A system includes a central analysis station and a display. The central analysis station may be configured to receive a unique identifier and performance data from each of a plurality of solar panels. The central analysis station may detect a problem in at least one of the plurality of solar panels based on the performance data. A display may be configured to display a status of the at least one of the plurality of solar panels based on the detected problem.

Power information management device and power information management system
11599074 · 2023-03-07 ·

The power information management device is directly or indirectly connected to a communication network and is provided with: wiring that transmits power; a power measurement unit that measures an amount and a direction of the power transmitted through the wiring; a power information generation unit that generates, on a predetermined period basis, power information that represents the amount and the direction of the power measured by the power measurement unit; and a communication unit that transmits the power information to the communication network, wherein a load unit, a power generation unit and a power storage unit are directly or indirectly connectable to the wiring.

Communication circuit for 2-wire protocols between HVAC systems and smart-home devices

A circuit for stealing power from an external system without interfering with a communication protocol may include wiring connectors configured to receive wires from the external system; a first voltage regulator to regulate a voltage on the plurality of wiring connectors at a plurality of voltage levels to encode a first multi-bit binary message according to the communication protocol to be sent to the external system; a current monitor to measure a plurality of current levels received through the plurality of wiring connectors and decode the plurality of current levels to determine a second multi-bit binary message sent from the external system according to the communication protocol; and a power converter that adjusts an amount of power stolen from the plurality of wiring connectors based at least in part on the voltage on the plurality of wiring connectors.

METHODS OF SECURELY CONTROLLING UTILITY GRID EDGE DEVICES

Methods of securely controlling a utility grid edge device are provided. A method of securely controlling a utility grid edge device includes receiving renewed security information at a node that includes cryptographic circuitry. Moreover, the method includes controlling an operation of the utility grid edge device via the node, after receiving the renewed security information. Related nodes and utility grid edge devices are also provided.

Object based robust and redundant distributed power system control

Systems and apparatuses include a first controller structured to control a first power system object located on a first route of a power system, and a second controller structured to control a second power system object located on a second route of the power system. The first controller and the second controller are both structured to perform a route level function including coordination of actions of the first power system object and the second power system object, and the first controller is a principal controller and the second controller is a participant controller.

Photovoltaic power plant energy harvest optimization—capacity factor, delta-P loss and ramp rate compensation
11626737 · 2023-04-11 · ·

A method of controlling a renewable energy power plant is provided. The method includes retrieving output power measurement values for each inverter of a total number of inverters from a plurality of sensors provided at a location proximal to each inverter and retrieving a point of interconnection (POI) output measurement value for the renewable energy power plant based on a plurality of ON inverters of the total number of inverters. The method also includes calculating a POI measured setpoint for the renewable energy power plant based on a difference between a power reference value for the renewable energy power plant and the retrieved POI output measurement value for the renewable energy power plant, assigning a setpoint to each of the ON inverters and classifying each ON inverter as either a TRACKING ON inverter or a NON-TRACKING ON inverter based on whether each ON inverter is tracking at the setpoint.

SYSTEMS AND METHODS FOR ENERGY STORAGE AND MANAGEMENT
20230106851 · 2023-04-06 ·

An energy storage system (ESS) including a battery management system (BMS) arranged to monitor and control operations associated with charging and discharging electrical current from a storage element where the BMS is positioned within a cavity of a housing. A site controller coordinates operations of the ESS with a component of a power distribution system where the site controller is positioned within the housing's cavity. The storage element may include one or more battery cells. The ESS may include a frame defining the housing's cavity and including first and second side panels and a front access panel. The access panel may include at least one hinge in proximity to the first side panel where the hinge is arranged to prevent a portion of the hinge from extending beyond an edge of the first side panel as the access panel rotates from a closed position to an open position.

Executing an energy transfer directive for an idle transport
11618329 · 2023-04-04 · ·

An example operation includes one or more of determining, by a transport at a first location, that the transport is not in use, determining, by the transport, a second location to transfer energy stored in the transport, maneuvering, by the transport, to the second location, discharging, by the transport, the stored energy to the second location, and maneuvering, by the transport, to the first location.

System, method, and apparatus for electric power grid and network management of grid elements
11650613 · 2023-05-16 · ·

Systems, methods, and apparatus for smart electric power grid communication are disclosed in the present invention. At least one grid element transmits at least one registration message over an Internet Protocol (IP)-based network to at least one coordinator. The at least one coordinator registers the at least one grid element upon receipt of the at least one registration message. The at least one grid element automatically and/or autonomously transforms into at least one active grid element for actively functioning in the electric power grid. The at least one coordinator tracks based on revenue grade metrology an amount of power available for the electric power grid or a curtailment power available from the at least one active grid element.

PHOTOVOLTAIC DISCONNECT DEVICE FOR STORAGE INTEGRATION
20230208187 · 2023-06-29 ·

The present disclosure provides a photovoltaic (PV) disconnect device used in an electrical system. The PV disconnect device includes a relay component electrically coupled to a feed circuit of a backup PV power generation system and a connector port electrically coupled to an energy control system. The PV disconnect device includes a sensor circuit to measure at least one of a voltage, a current, and a current frequency of the feed circuit of the backup PV power generation system. The PV disconnect device includes a controller operatively coupled to the relay component, the sensor circuit, and the connector port. The controller receives and processes the voltage, the current, and the current frequency measurements. The controller selectively actuates the relay component based on the processed voltage, current, and current frequency measurements.